arr = [1,2]
info_tuple = (1,2)
arr2 = [3,4]
info2_tuple = (3,4)
str1 = "Hello"
str2 = "Python"
obj1 = {
    "name":"老王"
}

print(arr * 3)
print(info_tuple * 2)

print(arr + arr2)
print(info_tuple + info2_tuple)

print(str1 + str2)

"""
in  判断元素是否存在(字符串,数组,元组,对象)
not in
"""
print(3 in arr)
print(3 in info_tuple)
print('H' in str1)
print('name' in obj1)